442220444012 has 48 divisors (see below), whose sum is σ = 806729353920. Its totient is φ = 211846656000.

The previous prime is 442220443969. The next prime is 442220444023. The reversal of 442220444012 is 210444022244.

It is a happy number.

It is a super-2 number, since 2×442220444012² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17100212 + ... + 17126052.

It is an arithmetic number, because the mean of its divisors is an integer number (16806861540).

Almost surely, 2^442220444012 is an apocalyptic number.

It is an amenable number.

442220444012 is a deficient number, since it is larger than the sum of its proper divisors (364508909908).

442220444012 is a wasteful number, since it uses less digits than its factorization.

442220444012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27002 (or 27000 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 29.

Adding to 442220444012 its reverse (210444022244), we get a palindrome (652664466256).

The spelling of 442220444012 in words is "four hundred forty-two billion, two hundred twenty million, four hundred forty-four thousand, twelve".